Thoracolumbar spine posterior minimally invasive bone cement spine internal fixation system and application

A fixation system and bone cement technology, applied in the direction of internal fixator, fixator, internal bone synthesis, etc., can solve the problems of spinal instability, postoperative recurrence, and long recovery time after surgery, and achieve less damage, less soft tissue stripping, The effect of strong biomechanical stability

Inactive Publication Date: 2013-03-20
KANGHUI MEDICAL INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional open surgery involves a lot of trauma to the patient. Elderly patients or patients with poor general conditions cannot undergo surgery. The recovery tim

Method used

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  • Thoracolumbar spine posterior minimally invasive bone cement spine internal fixation system and application
  • Thoracolumbar spine posterior minimally invasive bone cement spine internal fixation system and application
  • Thoracolumbar spine posterior minimally invasive bone cement spine internal fixation system and application

Examples

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Embodiment Construction

[0036] The following provides a specific embodiment of a thoracolumbar posterior minimally invasive bone cement spinal internal fixation system and its application.

[0037] figure 1 , 2 , 3 is a schematic diagram of the implant. in figure 1 A schematic diagram of a hollow pedicle screw, figure 2 is the schematic diagram of the top wire, image 3 Schematic diagram of the pre-bent connecting rod.

[0038] Such as figure 1 As shown, the hollow pedicle screw 1 is composed of three parts, a screw cap 11 , a compression washer 12 and a nail body 13 . The screw cap 11 is provided with a U-shaped deep groove 112; the interior is provided with an internal thread 111; the inner wall is provided with a groove 113 for limiting the compression washer; the interior is provided with a spherical acetabular cup 114 for matching with the head of the nail body ; The tail is provided with a top groove 115 for matching and locking with the screw extender. The compression washer 12 is pro...

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Abstract

The invention relates to a thoracolumbar spine posterior minimally invasive bone cement spine internal fixation system and application. The thoracolumbar spine posterior minimally invasive bone cement spine internal fixation system is composed of minimally invasive bone cement spine internal fixation system implantation materials and relative surgical instruments. The minimally invasive bone cement spine internal fixation system implantation materials comprise vertebral pedicle bolts, a neck-bending connection bar and jackscrews. The relative surgical instruments comprise implantation and orthopedic tools and the implantation materials are corresponding to the implantation and orthopedic tools. Excepting universal surgical tools, the relative surgical instruments specially comprise special tools directing at minimally invasive surgery percutaneous surgery and bone cement injection. The thoracolumbar spine posterior minimally invasive bone cement spine internal fixation system and application has the advantages that fixed advantages of the minimally invasive surgery and bone cement injection are combined, system trauma is small, an anti-pullout force is strengthened due to the bone cement injection, complications such as unstable spine, looseness, relapse can be avoided, and the thoracolumbar spine posterior minimally invasive bone cement spine internal fixation system is particularly suitable for agedness osteoporosis patients.

Description

【Technical field】 [0001] The invention relates to the technical field of spinal surgery medical instruments, in particular to a thoracolumbar posterior minimally invasive bone cement spinal internal fixation system and its application. 【Background technique】 [0002] Common thoracolumbar spine diseases include degenerative diseases, fractures, tumors, infections, etc. Spinal surgery and internal fixation have been used in clinical practice for nearly a hundred years, and great progress has been made in materials and design. Traditional spinal internal fixation surgery is traumatic, and extensive soft tissue incision and stripping can easily lead to more bleeding, changes in the physiology and anatomy of the spine, resulting in vertebral instability, and prolonged postoperative recovery time and other complications. Minimally invasive spinal surgery began to develop in the 1970s. At present, orthopedic surgeons have gradually realized the necessity and importance of minimally...

Claims

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Application Information

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IPC IPC(8): A61B17/70A61B17/88
Inventor 山卫东周英杰郑怀亮赵刚郑朝晖余强陶凯季文婷
Owner KANGHUI MEDICAL INNOVATION
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